Pickling-machine for sheet metal.



Patented lApr. 9, 190|. 0..GAUHE. PICKLING MACHINE FOR SHEET METAL.

(Application led July 17, 1900.)

(N0 Nadel.)

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UNITED STATES PATENT OFFICE.

OTTO GAUHE, OBERLAHNSTEIN, GERMANY.

PlCKLlNG-NIACHINE FOR SHEET METAL.

SPECIFICATION forming part of Letters Patent N o. 671,588, dated April9, 1901.

Application filed July 1'7. 1900. Serial No. 23,931. (No model.)

T0 all whom, t may concer-2t:

Be it known that l, OTTO GAUHE, a subject ofthe EmperorofGermany,residing at Brckenstrasse No. 4:, Oberlahnstein-on-the-Rhine, inthe Empire of Germany, have invented certain new and useful Improvementsin Picn kling-Machines for Sheet Metal or the Like, of which thefollowing is a specification.

This invention relates to improvements in pickling-machines for sheetmetal or the like.

In pickling-machines at present in use the rotary frame is provided withfixed arms from the ends of which the pickling-baskets are suspended,and it can only be raised and lowered as a whole in order to dip andraise the said baskets into and from the picklingtrough and thewater-trough, so that the baskets to be emptied and those to be filledare also raised and lowered. This is a greatdisadvantage, because thebaskets can only be emptied or filled when they are in their lowestresting position-that is to say, while the other two are in the troughs.The period during which this takes place is, however, limited andinsufficient, because in order to pickle well and increase the outputthe process must be rendered as short as possible by using strongpickle. The present invention removes this disadvantage by providing anindependent elevating and lowering device by means of which only thosearms are raised i or lowered which are above the troughs, and the otherarms remain meanwhile at rest, whilevwhen the arms are raised the wholedevice can revolve like a rotary frame with fixed arms. By this meansthe time required for raising and lowering baskets is also utilized forfilling and emptying the other baskets, and the lling and emptying ofone set of basket-s can be commenced and discontinued independently ofthe raising and lowering of the other set of baskets. Naturally in thisdevice the arms of the rotary frame must be separate elements.

In the annexed drawings one form of the device is represented.

Figure l is a longitudinal section of the sheet-metal-piekling machinewith the rotary frame, while Fig. 2 is asection thereof on the line a:in Fig. 1. Fig.,3 is a cross-section on line 3 3 of Fig. 1.

To the stationary hollow column 1I the part a. of a horizontal circularrace or track is fixed. The carriage lo slides up and down the lowerpart of the said column and carries the part l) of the said track, whichis fixed to the carriage k in such a manner that when the latter is atits highest point the part b forms, with the part a, a complete circulartrack. The upper part of the column t' carries upon a shoulder a rotaryframe c, which does not rise or fall. At its lower end this frame c isprovided with projections 0r arms d and above the latter with verticalrails c.

The separate triangular carriers fconsisl. of

horizontal arms Z, formed each of two parallel plates or bars, and thetwo bars f f2. These frames are each supported by a roller g, restingupon the track a b, and a second roller 7L, running against the rail e.When the said carriers f are in their highest position, the two platesof which each arm Z thereof consists lie one on each side of the arms dof the revolving frame c in such a manner that the carriers f mustfollow the saidframe c in its rotation and are firmly interconnected, sothat the wholerevolves like a frame with fixed arms, the rollers grunning upon the track d b. If the carriage lo, with the part b of thecircular track, is lowered toward the foot of the column, the carriersf, resting upon the said part b, lare thereby simultaneously lowered,and the arms Z thereof in moving downward are disengaged from the armsd. IThe rollers h move downward along the rails e. The two carriers f,over the water-trough and the pickling-trough, res pecti vely,rest uponthe movable part b of the track, and when they are sufficiently loweredthe baskets suspended therefrom dip into the liquids in the troughs.Meanwhile the other carriers upon the xed part a of the track remainstationary, and the baskets suspended therefrom can be emptied or filledwithout hindrance. On the carriages la with the part b of the trackbeing raised again the circular track is completed,

' the disengaged arms CZ enter between the arms Z of the elevatedcarriersf from above, and the whole forms once more a rotary frame withfixed arms and can be caused to rotate.

The raising and lowering of the carriage k can be eected by variousmeans--for in- IOO stance, by means of a chain o, passing over pulleys nand through the interior of the column il, one end of the said chainbeing attached to the cross-piece q of the carriage, moving in two slotslo, provided opposite each other in the column z', and the other end ofthe chain carrying a counterweight r.

rlhe two basket-carriers over the troughs move upward and downward undervertical guidance and are th us prevented from turning, so that inIrising they always exactly meet together with their respective arms d.

I declare that what I claim isl. In a sheet-metal-pickling machine, thecombination of a standard, a frame adapted to revolve thereon, carriersfor the picklingbaskets vertically movable in said frame, a stationarypart circular track concentric with said standard for supporting saidcarriers in their higher position,a movable partcireular trackconcentric with said standard, and means for raising and lowering saidmovable part-circular track for the purpose of lowering and raisingthose of the carriers which are temporarily supported thereby.

2.. The combination of astandard, a frame adapted torevolve thereon,carriers for the pickling-baskets vertically movable in said` purpose oflowering and raising those of the carriers which are temporarilysupported o the movable part-circular track. I

3. The combination of a standard, a frame adapted to revolve thereon, astationary partcircular track concentric with said standard, a movablepartcircula-r track concentric with said standard, means for loweringand raising said movable part-circular track, and carriers for thepickling-baskets havingrollers guided vertically in said frame and otherrollers supported by said circular track.

4.' The combination ofa standard, a frame adapted to revolve thereon,and having projecting arms, carriers for the pickling-baskets verticallymovable in said frame, and having their horizontal members adapted toengage said arms when the carriers are in their raised position, astationary part-circular track concentric with said standard forsupporting said carriers in their higher position, a movablepart-circular track, concentric withsaid standard and means for loweringand raising said movable part-circular track for the purpose of loweringand raising those ot' the carriers which are temporarily supportedthereby.'

In witness whereof I have signed this specification in the presence oftwo witnesses.

OTTO GAUHE.

Witnesses:

KARL SCHMITT, L. BARNES.

